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DateTue, 16 Nov 2010 14:48:12 -0800
FromDarren Hart <>
SubjectRe: [ANNOUNCE] New utility: 'trace'
On 11/16/2010 02:09 PM, Darren Hart wrote:
> On 11/16/2010 02:03 PM, Peter Zijlstra wrote:
>> On Tue, 2010-11-16 at 22:59 +0100, Ingo Molnar wrote:
>>>
>>>
>>> Would you be interested in helping out with (and testing) such a more
>>> generic
>>> approach?
>>
>> how about having perf-record open a named pipe and rewriting everything
>> that comes in through that as an event and storing it in the buffer?
>
> When I'm tracing an app or test-case, I want to be able to quickly add
> and change strings. I like the trace_printk sort of access as it avoids
> having to do a bunch of string formatting (sprintf()) calls in the test
> app.

Sorry - fprintf would work for Peter's suggestion. I had the PR_SET_NAME
with a short string or another call with jsut a plain C string - those
would require the user doing the string formatting first.

--
Darren Hart
Yocto Linux Kernel


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